Method for intraluminally inducing cardioplegic arrest and catheter for use therein

• US 5,725,496 A
• Filed: 04/24/1995
• Issued: 03/10/1998
• Est. Priority Date: 12/03/1992
• Status: Expired due to Term

• Current Assignee: Edwards Lifesciences LLC (Edwards Lifesciences Corporation)
• Original Assignee: Heartport, Inc. (Johnson & Johnson)
• Inventors: Peters, William S.
• Primary Examiner(s): ELGART, VANITHA M
• Application Number:
  US08/427,384
• Time in Patent Office: 1,051 Days
• Field of Search: 604/49, 604/51-53, 604/96-103, 604/4, 604/5, 604/113, 604/28, 604/43, 606/192, 606/194, 606/21, 600/18
• US Class Current: 604/509
• CPC Class Codes: A61B 2018/00232 having an irregular shape
• CPC Class Codes: A61B 2018/00261 arranged in a line
• CPC Class Codes: A61M 2025/028 having a mainly rigid support structure
• CPC Class Codes: A61M 2025/1052 for temporarily occluding a vessel for isolating a sector
• CPC Class Codes: A61M 2202/047 cardioplegic
• CPC Class Codes: A61M 2205/3344 Measuring or controlling pressure at the body treatment site
• CPC Class Codes: A61M 2205/3355 Controlling downstream pump pressure
• CPC Class Codes: A61M 2210/127 Aorta
• CPC Class Codes: A61M 25/0023 by the form of the lumen, e.g. cross-section, variable diameter
• CPC Class Codes: A61M 25/0026 Multi-lumen catheters with stationary elements catheter assemblies comprising a catheter in combination with a guide tube, sheath or sleeve A61M2025/0681; catheters comprising telescoping coaxial elements A61M2025/0175
• CPC Class Codes: A61M 25/0032 characterized by at least one unconventionally shaped lumen, e.g. polygons, ellipsoids, wedges or shapes comprising concave and convex parts

Abstract

A process for inducing cardioplegic arrest of a heart in situ in a patient'"'"'s body, comprising maintaining the patient'"'"'s systemic circulation by peripheral cardiopulmonary by-pass, occluding the ascending aorta through a percutaneously placed arterial balloon catheter, venting the left side of the heart, and introducing a cardioplegic agent into the coronary circulation. This procedure readies the heart, for a variety of surgical procedures that can be performed percutaneously through lumina in the catheter. An aortic catheter for use in the process is also described.

Claims

1. A method of occluding a patient'"'"'s ascending aorta and supplying oxygenated blood from a cardiopulmonary bypass system, comprising the steps of:

providing a catheter having a proximal portion, a distal portion, an occluding member, a lumen, a blood flow path, an outlet, and an opening, the distal portion extending from the proximal portion and having a smaller cross-sectional size than the proximal portion, the occluding member being mounted to the distal portion and having a collapsed shape and an expanded shape, the expanded shape being configured to occlude a patient'"'"'s ascending aorta, the lumen extending through the proximal portion and being fluidly coupled to the outlet which is positioned distal to the occluding member, the blood flow path extending through the proximal portion, the opening being in fluid communication with the blood flow path;

coupling the blood flow path to a cardiopulmonary bypass system, the cardiopulmonary bypass system supplying oxygenated blood;

delivering the oxygenated blood to a patient through the blood flow path;

positioning the occluding member in the patient'"'"'s ascending aorta;

expanding the occluding member after the positioning step so that the occluding member occludes the patient'"'"'s ascending aorta; and

introducing cardioplegic fluid through the lumen to arrest the patient'"'"'s heart.